220193421

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1\times {\mathrm{709}}^1$

素因数の和:1385

約数の個数: 32

約数和(自身を含む): 351160320

約数和(自身を除く): 130966899

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 643, 709, 1929, 2127, 4501, 4963, 13503, 14789, 14889, 16307, 44367, 48921, 103523, 114149, 310569, 342447, 455887, 1367661, 3191209, 9573627, 10485401, 31456203, 73397807, 220193421]

約数ペア:

[(1, 220193421), (3, 73397807), (7, 31456203), (21, 10485401), (23, 9573627), (69, 3191209), (161, 1367661), (483, 455887), (643, 342447), (709, 310569), (1929, 114149), (2127, 103523), (4501, 48921), (4963, 44367), (13503, 16307), (14789, 14889)]